Right click on page tab to put it to sleep to save CPU and RAM

Abiltiy to put a tab to sleep with right click on it.

So we can save CPU processes and RAM on this tab when we think we will not be using it soon again in the current session, but we do not want to close it.

I have a lot of RAM on my machine, but on my days of research I open too many tabs, most of them not in use, and my PC slows down notably. I know when I will not be using a tab anytime soon in the current session, so this would be userful.

Maybe also an option to awake that tab.

Thanks